Electric Heat Kits - Similar to Rheem RXBH Series Standard Features: Point Suspension element support system which eliminates hot spots to extend heater life. Time delay between steps which recycles on power interruption or brown-out. No off delay (a problem with sequencers) to increase SEER rating and prevents heating overshoot. Chatter and Rapid-Cycle Resistant Contactors rated for 250,000 cycles. Rounded metal corners for safer handling and installation. Modular elements replaceable in 5kW increments. Modular control plug for installation ease. Completely assembled, tested, and certified. Customized Barcode labeling. Single point power available.